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    Copyright (C) 2001 Paul Davis 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id: streamview.h,v 1.40 2005/01/22 05:00:43 pauld Exp $

#ifndef __ardour_streamview_h__
#define __ardour_streamview_h__

#include <list>
#include <map>
#include <cmath>

#include <gtk--.h>
#include <gtk-canvas.h>

#include <ardour/location.h>
#include "enums.h"

namespace ARDOUR {
      class Route;
      class DiskStream;
      class Crossfade;
      class PeakData;
      class AudioRegion;
      class Source;

class PublicEditor;
class Selectable;
class AudioTimeAxisView;
class AudioRegionView;
class AudioRegionSelection;
class CrossfadeView;
class Selection;

class StreamView : public SigC::Object
      StreamView (AudioTimeAxisView&);
      ~StreamView ();

      void set_waveform_shape (WaveformShape);

      AudioTimeAxisView& trackview() { return _trackview; }

      void set_zoom_all();

      int set_height (gdouble);
      int set_position (gdouble x, gdouble y);

      int set_samples_per_unit (gdouble spp);
      gdouble get_samples_per_unit () { return _samples_per_unit; }

      int set_amplitude_above_axis (gdouble app);
      gdouble get_amplitude_above_axis () { return _amplitude_above_axis; }

      void set_show_waveforms (bool yn);
      void set_show_waveforms_recording (bool yn) { use_rec_regions = yn; }

      GtkCanvasItem* canvas_item() { return canvas_group; }

      SigC::Signal1<void,AudioRegionView*> AudioRegionViewAdded;

      enum ColorTarget {

      void apply_color (GdkColor&, ColorTarget t);
      void set_selected_regionviews (AudioRegionSelection&);
      void get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable* >&);
      void get_inverted_selectables (Selection&, list<Selectable* >& results);
      GdkColor get_region_color () const { return region_color; }

      void foreach_regionview (SigC::Slot1<void,AudioRegionView*> slot);
      void foreach_crossfadeview (void (CrossfadeView::*pmf)(void));

      void attach ();
      void region_layered (AudioRegionView*);
      AudioRegionView* find_view (const ARDOUR::AudioRegion&);

      void show_all_xfades ();
      void hide_all_xfades ();
      void hide_xfades_involving (AudioRegionView&);
      void reveal_xfades_involving (AudioRegionView&);

      AudioTimeAxisView& _trackview;

      GtkCanvasItem* canvas_group;
      GtkCanvasItem* canvas_rect; /* frame around the whole thing */

      typedef list<AudioRegionView* > AudioRegionViewList;
      AudioRegionViewList region_views;

      typedef list<CrossfadeView*> CrossfadeViewList;
      CrossfadeViewList crossfade_views;

      double _samples_per_unit;
      double _amplitude_above_axis;

      SigC::Connection screen_update_connection;
      vector<GtkCanvasItem* > rec_rects;
      list<ARDOUR::AudioRegion* > rec_regions;
      bool rec_updating;
      bool rec_active;
      bool use_rec_regions;
      list<SigC::Connection> peak_ready_connections;
      jack_nframes_t last_rec_peak_frame;
      map<ARDOUR::Source*, bool> rec_peak_ready_map;
      void update_rec_box ();
      void transport_changed();
      void rec_enable_changed(void*  src = 0);
      void sess_rec_enable_changed();
      void setup_rec_box ();
      void rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, ARDOUR::Source* src); 
      void update_rec_regions ();
      void add_region_view (ARDOUR::Region*);
      void add_region_view_internal (ARDOUR::Region*, bool wait_for_waves);
      void remove_region_view (ARDOUR::Region* );
      void remove_rec_region (ARDOUR::Region*);
      void remove_audio_region_view (ARDOUR::AudioRegion* );
      void remove_audio_rec_region (ARDOUR::AudioRegion*);

      void display_diskstream (ARDOUR::DiskStream* );
      void undisplay_diskstream ();
      void redisplay_diskstream ();
      void diskstream_changed (void* );
      void playlist_state_changed (ARDOUR::Change);
      void playlist_changed (ARDOUR::DiskStream* );
      void playlist_modified ();

      bool crossfades_visible;
      void add_crossfade (ARDOUR::Crossfade*);
      void remove_crossfade (ARDOUR::Crossfade*);

      /* XXX why are these different? */
      GdkColor region_color;
      uint32_t stream_base_color;

      vector<SigC::Connection> playlist_connections;
      SigC::Connection playlist_change_connection;

#endif /* __ardour_streamview_h__ */

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